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3 years ago

carmen draws this area model to help her divide 1800 by 9. she say the quotient is 20. does carmen model make sense

Mathematics

2 answers:

SpyIntel [72]3 years ago

6 0

Answer:

Step-by-step explanation:

the quotient is 200, not 20

nataly862011 [7]3 years ago

3 0

Answer:

Carmen's model does not make sense.

Step-by-step explanation:

Take away the two zeros in 1800 then it will become 18 so 18 divided by 9 = 2. Plug in the two zeros from 1800 hundred to the 2 and your answer would be 200. Or you can just divide 1800 by nine.

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Can anyone help me with this?

erma4kov [3.2K]

Answer: 16y² - x²

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10 is not a square so that one is eliminated (though the y² and the 4x² are squares)

16 is the square of 4, y² is the square of y, and x² is the square. That expression shows a difference of squares.

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3 years ago

If A+B = 76 & A -B = 38 What is A/B?

Igoryamba

$A+B=76\\
A-B=38\ \ --->\ \ A=38+B\\\\
38+B+B=76\\
38+2B=76\ \ | subtract\ 38\\2B=38\ \ \ | divide\ by\ 2\\
B=19\\A=57\\\\
\frac{A}{B}=\frac{57}{19}=3$

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3 years ago

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lys-0071 [83]

Using the binomial distribution, it is found that the mean and the standard deviation of variable x are given as follows:

$\mu = 3, \sigma = 0.87$

<h3>What is the binomial probability distribution?</h3>

It is the probability of exactly <u>x successes on n repeated trials, with p probability</u> of a success on each trial.

The expected value of the binomial distribution is:

E(X) = np

The standard deviation of the binomial distribution is:

$\sqrt{V(X)} = \sqrt{np(1-p)}$

In this problem, we have that the parameters are given as follows:

n = 4, p = 0.75.

Hence the mean and the standard deviation are given as follows:

E(X) = np = 4 x 0.75 = 3.

$\sqrt{V(X)} = \sqrt{np(1-p)} = \sqrt{4 \times 0.75 \times 0.25} = 0.87$

More can be learned about the binomial distribution at brainly.com/question/24863377

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2 years ago

James has 16 balloons . ¼ of his balloons are red . How many red balloons does he have.

vesna_86 [32]

4 because 1/4 is basically dividing by 4

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3 years ago

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A movie is 2 hours and 28 minutes long it starts at 7:20pm at what time will the movie end

umka2103 [35]

Movie starts 7:20 PM
2 hours = 02:00
28 minutes = 00:28

1.) 2 hours and 28 minutes = 02:28
2.) Movie starts 7:20 PM

You want to find out what time the movie will end

07:20 PM (start time)
+ 02:28 (movie time)
-------------------------------------
09:48 PM (movie end)

The movie will end at 9:48 PM

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4 years ago

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carmen draws this area model to help her divide 1800 by 9. she say the quotient is 20. does carmen model make sense​

carmen draws this area model to help her divide 1800 by 9. she say the quotient is 20. does carmen model make sense